Device for diffusing substances



FIG. 1 is a top, right perspective view of a device for diffusing substances showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. The dash-dot broken lines in the drawings delineate the boundaries of the claimed subject matter, wherein the claimed subject matter includes shading and the unclaimed subject matter does not include shading. 

We claim the ornamental design for a device for diffusing substances, as shown and described. 